tranny leaking at transfer case

[superchicken]

My TF999 is leaking where it bolts to my Dana 300 . Leaks really bad. Is there a seal that I can replace without dropping the Transmission ? It looks easy enough to drop the Transfer Case . Has anyone done this?

 

[Petescj]

Not on a TF999 but there is a seal in between the Dana 300 and a T-176 . Ive replaced mine already. Id imagine there is one in between your auto and the Dana 300 also. Yes its easy.

 

[BrockGrimes]

If I'm not mistaken some of the bolts that hold the Transmission and Transfer Case together actually go into the Transfer Case . Sometimes people forget to seal the threads and it'll leak something terrible.
Someone who's pulled a 300 recently could probably tell which bolts if any go into the case, a good thread sealer or a little RTV will seal those up.

If that doesn't fix it then it's a gasket between the 2. Not a bad fix but takes time.

 

[superchicken]

Thanks guys, i might just pull it next week to see what i get. I have a long trip coming Easter weekend so I need it ready

 

[Old Dog]

Is it leaking Transmission . fluid or t/c fluid.

 

[superchicken]

red tranny fluid.

 

[Old Dog]

I think there is a seal in the tailshaft, you should be able to get to it by removing the t/c.

 

[BrockGrimes]

Is it leaking Transmission . fluid or t/c fluid.

Good catch I sometimes forget some jeeps come with two different fluids in the Transmission and Transfer Case .

My old '79 was 80w90 in both. T-150 /Dana 20 use the same.